__________ is the movement of chemical in the upper layers of soil into lower layers or into groundwater by being dissolved in water.
1). infiltration
2). salinisation
3). eutrophication
4). leaching
1. The capital of the Mauryan Kingdom was located at___________
2. The thermal equator is found
3. The city of ?Kolkata? in the Indian state of ?West Bengal? is situated on the banks of the river____
4. The largest exporter of cotton textile in the world is :
5. Largest sugarcane growing state is :
8. Which of the following pairs is not correctly matched
9. The cold and dense air blowing down the mountain slopeduring the night is known as :